LCE48A Equivalent & Substitute Parts

Part Overview

The LCE48A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This through-hole component operates across a temperature range of -55°C to 175°C and is RoHS3 compliant. The part is currently in active production status with 1110 units available in inventory. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, higher current handling capacity, or different packaging configurations while maintaining compatible electrical performance within the specified voltage and power parameters.

Substiute Parts

LCE48A

Littelfuse Inc.In Stock: 1179LCE48A Datasheet

Current PartRFQ

1.5KE47A

Taiwan Semiconductor CorporationIn Stock: 368961.5KE47A Datasheet

MFR RecommendedRFQ

5KP48A

Littelfuse Inc.In Stock: 88785KP48A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LCE48A is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 48V nominal
• Voltage - Clamping (Max) @ Ipp: 77.4V maximum
• Unidirectional channel configuration: 1 channel
• Mounting type: Through Hole
• Operating temperature range: -55°C to 175°C
• RoHS3 compliance requirement

The 1.5KE47A qualifies as a substitute based on matching reverse standoff voltage (40.2V typical, within acceptable tolerance band), identical clamping voltage (64.8V), equivalent unidirectional topology, through-hole mounting, and RoHS3 compliance. The 5KP48A qualifies as a higher-capacity substitute, matching the exact reverse standoff voltage (48V), clamping voltage (77.4V), and voltage specifications while providing increased peak pulse current (65.9A) and power dissipation (5000W) in an alternative package configuration (P600).

Parameter Comparison

Engineering Selection Recommendations

All three components maintain active product status and full RoHS3 compliance, meeting regulatory requirements for current applications. The LCE48A and 5KP48A share identical voltage specifications (48V reverse standoff, 77.4V clamping), making the 5KP48A suitable for applications requiring higher transient current handling (65.9A versus 19.4A) or increased power dissipation capacity (5000W versus 1500W). The 1.5KE47A provides equivalent 1500W power rating with slightly lower voltage standoff (40.2V) and higher peak pulse current (24A), suitable for applications where voltage tolerance permits the lower standoff specification. Package compatibility must be verified for board-level integration, as the 5KP48A uses P600 packaging while the LCE48A and 1.5KE47A use DO-201AA/DO-27 configurations.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE47A directly replace the LCE48A in all applications?

A: The 1.5KE47A operates at a lower reverse standoff voltage (40.2V versus 48V). Direct substitution is valid only when circuit design tolerates this lower voltage threshold. Both components share identical 1500W power rating and -55°C to 175°C operating range.

Q: What is the primary advantage of the 5KP48A over the LCE48A?

A: The 5KP48A provides identical voltage specifications (48V standoff, 77.4V clamping) with significantly higher transient current capacity (65.9A versus 19.4A) and power dissipation (5000W versus 1500W). Selection depends on circuit transient energy requirements.

Q: Are package differences between DO-201AA and P600 critical for substitution?

A: Yes. Package geometry affects board layout, thermal management, and mechanical mounting. DO-201AA and P600 packages have different physical dimensions and thermal characteristics. Verify PCB footprint compatibility before substitution.

Q: Do all three parts meet current compliance requirements?

A: All three components are RoHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component use.

Q: What determines whether the 1.5KE47A or 5KP48A is the appropriate substitute?

A: Application requirements determine selection. Use 1.5KE47A when voltage tolerance permits 40.2V standoff and 1500W power is sufficient. Use 5KP48A when exact voltage matching (48V) and higher transient current/power capacity are required.